Видео ютуба по тегу Excel Helper Column Hack

VLOOKUP with Multiple Criteria in Excel - Create a Helper column
VLOOKUP with Multiple Criteria in Excel - Create a Helper column
Sort list with helper column
Sort list with helper column
Excel - Using Helper Columns When Building Reports - A How To
Excel - Using Helper Columns When Building Reports - A How To
Using an IF formula to create a helper column
Using an IF formula to create a helper column